package servlet;

import pojo.User;
import service.impl.UserServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
//注解
@WebServlet(urlPatterns = "/toupdate")
public class ToUpdateUserServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        // TODO
        req.setCharacterEncoding("UTF-8");
        //获取参数
        String sid = req.getParameter("id");
        int id = Integer.parseInt(sid);


        UserServiceImpl userService = new UserServiceImpl();
        User user = userService.findUserById(id);


        req.setAttribute("user", user);
        req.getRequestDispatcher("/updateUser.jsp").forward(req, resp);




        //把数据放在请求域中
        //req.setAttribute("userList", userService.findAll());
        //在那个页面显示数据
        //req.getRequestDispatcher("/updateUser.jsp").forward(req, resp);
    }
}